7 results
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... neuromuscular disease, ↓ chest ... Cardiac, Vascular, Alveolar ... Diagnosis #Algorithm #pulmonary ... #Aa #Gradient
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Age-Adjusted Gradient • Alveolar ... Left Shunt - Anatomic ... UnremarkableLab #AA ... #Gradient #alveolar ... Hypoxia #hypoxemia #differential
Chest Pain - Differential Diagnosis Framework

Cardiovascular Causes of Chest Pain:
 • Myocardium:
	- Myocarditis
	- CAD/ACS
	- Valvulopathy
	- Myopericarditis
Chest Pain - Differential ... - Tamponade Pulmonary ... Pleuritis • Alveoli ... : - CHF - Pneumonia ... Pain #ChestPain #Differential
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Chronic Dyspnea - Differential ... Thickening/Masses Chest ... Alveoli • Pneumonia ... Interstitium • ILD • CHF ... #Dyspnea #SOB #Differential
Notice that even within each lobe there is a gravity dependent difference in density.
This is only
even within each lobe ... transudate like in CHF ... Clinical #Radiology #CTChest ... #CHF #Alveolar ... #Pulmonary #Edema
Uncommon Causes of Noncardiogenic Pulmonary Edema (NCPE) - Differential Diagnosis Framework

High Altitude Pulmonary Edema:
 • Accumulation
Edema (NCPE) - Differential ... the right middle lobe ... interstitium and alveoli ... infiltrates on chest ... edema #causes #differential
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Illnesses: • Pulmonary ... of right middle lobe ... massiliense in CF ... • Dyspnea, • Chest ... NTM #Infections #differential